The Flight Procedure Standards Branch is responsible for establishing instrument procedure (departure, en route, arrival, approach) design and obstacle clearance standards, criteria, and policy for the existing National Airspace System (NAS) flight procedure structure and to accommodate emerging technologies and flight operation capabilities. AFS-420 develops and establishes criteria for terminal instrument procedures for issuance in the current edition of FAA Order 8260.3, United States Standard for Terminal Instrument Procedures (TERPS), and related 8260-series orders.

Federal Aviation Administration
Flight Procedure Standards Branch, AFS-420
6500 S. MacArthur Blvd.
Oklahoma City, OK 73125

Phone: (405) 954-4164
Fax: (405) 954-2471

General Inquiries: General Inquiries, Flight Procedure Standards Branch/Program Manager